Finding the Fourth Proportional to 19,641,570.12, 27,100,586.70 and 12,935,210.28
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Solution
The fourth proportional to 19,641,570.12, 27,100,586.70 and 12,935,210.28 is: 17,847,442.21
Step by Step Solution
- Step 1: Write the proportion equation
19,641,570.12 : 27,100,586.70 = 12,935,210.28 : x - Step 2: Convert to fraction form
19,641,570.12/27,100,586.70 = 12,935,210.28/x - Step 3: Cross multiply
19,641,570.12x = 27,100,586.70 × 12,935,210.28 - Step 4: Simplify right side
19,641,570.12x = 350,551,787,675,871.25 - Step 5: Solve for x
x = 350,551,787,675,871.25/19,641,570.12 - Step 6: Final answer
x = 17,847,442.21
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.